Rank Math SEO - "Remove Parent Slugs" Option Causes Category Slug Translation Error (404)

Overview of the issue

When the Remove parent slugs option is enabled in the Rank Math SEO plugin with WooCommerce, it leads to a problem with the translation of product categories. If you switch to a secondary language from a product category page, it points to the untranslated category slug, leading to a 404 error page.

Workaround

Please, make sure of having a full backup of your site before proceeding.

• Open …/wp-content/plugins/seo-by-rank-math/includes/modules/woocommerce/class-permalink-watcher.php file.
• Look for line 124.
• Replace this code:

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  $permalink_structure  = wc_get_permalink_structure(); $category_base        = trailingslashit( $permalink_structure['category_rewrite_slug'] ); $is_language_switcher = ( class_exists( 'Sitepress' ) && strpos( $link, 'lang=' ) );

• With:

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  $permalink_structure  = wc_get_permalink_structure();   // WPML Workaround for compsupp-6895 if ( class_exists('Sitepress') ) {     $args = array('element_id' => $term->term_id, 'element_type' => $taxonomy );     $term_language_info = apply_filters( 'wpml_element_language_details', null, $args );     $permalink_structure['category_rewrite_slug'] = apply_filters('wpml_translate_single_string', $permalink_structure['category_rewrite_slug'], 'WordPress', 'URL '.$taxonomy.' tax slug', $term_language_info->language_code ); }   $category_base        = trailingslashit( $permalink_structure['category_rewrite_slug'] ); $is_language_switcher = ( class_exists( 'Sitepress' ) && strpos( $link, 'lang=' ) );